@article{article07c6fb48, title = {Lethal factor to mice produced by Escherichia coli isolated from chickens with swollen head syndrome}, author = {Salvadori, Márcia Regina and Chudzinski-Tavassi, Ana Marisa and Baccaro, Maria Regina and Ferreira, Claudete Serrano Astolfi and Ferreira, Antonio José Piantino and Prado-Franceschi, Júlia and Yano, Tomomasa}, year = {2002}, journal = {Microbiology and Immunology} }